rectifyv. t.[F. rectifier, LL. rectificare; L. rectus right + -ficare (in comp.) to make. See Right, and -fy.]1. To make or set right; to correct from a wrong, erroneous, or false state; to amend; as, to rectify errors, mistakes, or abuses; to rectify the will, the judgment, opinions; to rectify disorders.()I meant to rectify my conscience. (Shak.)This was an error of opinion which a conflicting opinion would have rectified. (Burke.)2. (Chem.) To refine or purify by repeated distillation or sublimation, by which the fine parts of a substance are separated from the grosser; as, to rectify spirit of wine.()3. (Com.) To produce ( as factitious gin or brandy) by redistilling low wines or ardent spirits (whisky, rum, etc.), flavoring substances, etc., being added.()()To rectify a globe, to adjust it in order to prepare for the solution of a proposed problem.()()a.[Recti- + lineal, linear.] Straight; consisting of a straight line or lines; bounded by straight lines; as, a rectineal angle; a rectilinear figure or course.()